On Fri, Dec 2, 2011 at 9:35 AM, Alexandre Snarskii <s...@snar.spb.ru> wrote:
> This draft says that ...note it's a DRAFT, not a STANDARD... > > If a BGP speaker receives a route which has an AS number of zero in the > AS_PATH (or AS4_PATH) attribute, it SHOULD be logged and treated as a > WITHDRAW. This same behavior applies to routes containing zero as the > Aggregator or AS4 Aggregator. > > but observed behaviour was more like following: > > If a BGP speaker receives [bad route] it MUST close session immediately > with NOTIFICATION Error Code 'Update Message Error' and subcode 'Error with > optional attribute'. hence this old behavor
